Concept explainers
3-37 Answer true or false.
(a) An ionic bond is formed by the combination of positive and negative ions.
(b) An ionic bond between two atoms forms by the transfer of one or more valence electrons from the atom of higher electronegativity to the atom of lower electronegativity.
(c) As a rough guideline, we say that an ionic bond will form if the difference in electronegativity between two atoms is approximately 1.9 or greater.
(d) In forming NaCl from sodium and chlorine atoms, one electron is transferred from the valence shell of sodium to the valence shell of chlorine.
(e) The formula of sodium sulfide is Na2S.
(f) The formula of calcium hydroxide is CaOH.
(g) The formula of aluminum sulfide is MS.
(h) The formula of iron(III) oxide is Fe2O2.
(j) Barium ion is Ba2, and oxide ion is O2-; there fore, the formula of barium oxide is Ba2O2.
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Chapter 3 Solutions
Introduction to General, Organic and Biochemistry
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